Morgan Creek flows from Sierra Crestheadwaters, through Upper Morgan Lake and Lower Morgan Lake, with a right tributary draining Bear Creek Spire through Spire Lake and Split Lake. A left tributary is from the Mount Morgancirque, the Finch Lake cirque, and two other cirques on the south.
The Morgan Creek mouth is the confluence with Pine Creek, northeast of the Pine Creek—Rock Creek and Rock Creek—Owens River confluences.[2]